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Comments (4)
johnlittlephysics said
at 3:32 pm on Sep 6, 2014
405 Kah Leng: I would like to ask if we need to know about cooling by evaporation because it's not in the specific learning objectives but it seems like theres a lot about it in the textbook.
johnlittlephysics said
at 3:36 pm on Sep 6, 2014
Knowledge of evaporation as a process is required (20.4 (f)). I have one slide on "Explanation of cooling by evaporation" in 19b Thermal Properties slides.
Understanding the behaviour of molecules during evaporation, and how this process also features in problems involving heat loss or gain would be useful.
johnlittlephysics said
at 8:26 pm on Sep 16, 2014
402 Agalia: Notes page 8 - What does 'lag the aluminium block' mean?
johnlittlephysics said
at 8:27 pm on Sep 16, 2014
Lag (verb) means to insulate a body or system with some insulator.
Lagging (when used as a noun) refers generally to a material used to insulate a body or system.
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